• If in a city we had six vacant lots available to the youngsters of a certain neighborhood for playing ball, it might be "development" to build houses on the first, and the second, and the third, and the fourth, and even the fifth, but when we build houses on the last one, we forget what houses are for.

    Aldo Leopold, David Earl Brown, Neil B. Carmony (1995). “Aldo Leopold's Southwest”, p.159, UNM Press